CN109781301B

CN109781301B - Detection device

Info

Publication number: CN109781301B
Application number: CN201711104884.5A
Authority: CN
Inventors: 黄顺治; 毛黛娟
Original assignee: Giga Byte Technology Co Ltd
Current assignee: Giga Byte Technology Co Ltd
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2021-05-18
Anticipated expiration: 2037-11-10
Also published as: CN109781301A

Abstract

The invention provides a detection device for detecting the heat dissipation efficiency of a heat dissipation device. The shell comprises a platform for bearing the heat dissipation device. The at least one first temperature sensor is connected with the shell and can move relative to the platform. When the detection device is in a use state, the at least one first temperature sensor is respectively contacted with the heat pipes of the heat dissipation device. When the detection device is not in use, the at least one first temperature sensor moves relative to the platform and is separated from the heat pipe. The control unit can determine the heat dissipation efficiency of the heat pipe according to the detected temperature.

Description

Detection device

Technical Field

The present invention relates to a detection device. More particularly, the present invention relates to a detection device for detecting a heat sink.

Background

Many high-power electronic components, such as a central processing unit, an image processor, etc., are provided in the conventional electronic device. These electronic devices have excellent data processing performance, but generate remarkable heat during operation, and if the heat is not removed by a proper heat dissipation mechanism, the heat will cause the electronic devices to exceed their safe operating temperature, thereby reducing the operation performance, and even causing the entire electronic device to be down due to overheating. Therefore, various heat dissipation devices, such as a sink, are developed.

In the manufacturing or transporting process of the sink, the heat dissipation efficiency of the heat dissipation device may be poor due to poor design or collision. Therefore, the detection device is required to detect the heat dissipation efficiency of the sink. However, the existing detection device can only detect the overall thermal resistance of the sink generally; therefore, the location and cause of the fault cannot be found after the detection is completed, and the detection efficiency is reduced. Therefore, how to solve the above problems becomes an important issue.

Disclosure of Invention

In order to solve the above-mentioned conventional problems, the present invention provides a detection device for detecting the heat dissipation efficiency of a heat dissipation device, which includes a housing, at least one first temperature sensor, and a control unit. The shell comprises a platform for bearing the heat dissipation device. The first temperature sensor is connected with the shell and can move relative to the platform. When the detection device is in a use state, the first temperature sensors are respectively contacted with the heat pipes of the heat dissipation device to detect the temperature of the heat pipes. When the detection device is not in use, the first temperature sensor moves relative to the platform and is separated from the heat pipe. The control unit determines the heat dissipation efficiency of the heat pipe according to the detected temperature.

In an embodiment of the invention, the detecting device further includes a second temperature sensor, and when the detecting device is in a use state, the second temperature sensor contacts the heated area.

In an embodiment of the present invention, the detecting device further includes a heating module, and when the detecting device is in a use state, the heating module contacts the heated area and provides heat energy to the heated area; the heating module is provided with a concave part, and the second temperature sensor is arranged in the concave part.

In an embodiment of the invention, the housing further includes at least one groove. When the detection device is in a non-use state, the first temperature sensor is accommodated in the groove.

In an embodiment of the invention, an end of the first temperature sensor has a tapered structure.

In an embodiment of the invention, the detecting apparatus further includes a first driving module for driving the first temperature sensor to move relative to the platform. The first driving module comprises a connecting rod, a pivoting shell and a first temperature sensor. Or, the first driving module comprises a connecting rod and a driving motor, the connecting rod is pivoted with the shell and the first temperature sensor, and the driving motor is connected with the connecting rod. Or, the first driving module comprises at least one electric push rod connected with the at least one first temperature sensor.

In an embodiment of the invention, the first driving module includes at least one driving unit respectively connected to the first temperature sensor, and each driving unit includes a first electromagnetic driving component and a second electromagnetic driving component, wherein the first electromagnetic driving component is connected to the housing, and the second electromagnetic driving component is connected to the first temperature sensor.

In an embodiment of the present invention, each driving unit further includes an elastic element respectively connected to the first electromagnetic driving assembly and the second electromagnetic driving assembly.

In an embodiment of the invention, the first driving module includes a plurality of driving units respectively connected to the first temperature sensors, and each of the driving units includes an elastic element connected to the housing and the first temperature sensor.

In an embodiment of the invention, the detecting device further includes a second driving module for driving the heating module to move relative to the platform.

Drawings

Fig. 1 is a front view of a detecting device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a detection apparatus according to an embodiment of the present invention.

Fig. 3 is a schematic view showing a heat dissipating device.

FIG. 4 is a front view of a detection device in a non-use state in accordance with an embodiment of the present invention.

FIG. 5A is a front view of a detection device in use in accordance with an embodiment of the present invention.

Fig. 5B is a schematic diagram illustrating a detection device in a use state according to an embodiment of the invention.

Fig. 6 is a schematic diagram of a driving unit of a first driving module according to another embodiment of the invention.

Fig. 7 is a schematic diagram illustrating a driving unit of a first driving module according to another embodiment of the present invention.

FIG. 8A is a schematic view of a detecting device according to still another embodiment of the present invention.

Fig. 8B is a schematic diagram of a driving unit of the first driving module according to still another embodiment of the invention.

Description of reference numerals:

10 heated zone

20 heat pipe

30 heat dissipation fin

100 case

110 platform

111 opening

120 side wall

130 head plate

131 groove

132 guide groove

200. 200A, 200B, 200C first drive module

210 connecting rod

220 driving motor

230 electric push rod

240 first electromagnetic drive assembly

250 second electromagnetic drive assembly

260 elastic element

270 fixing piece

280 elastic element

290 movable member

300 first temperature sensor

400 second drive module

500 heating module

510 recess

600 second temperature sensor

700 control unit

S heat radiator

W wire

Detailed Description

The following describes a detection apparatus according to an embodiment of the present invention. However, those of ordinary skill in the art will readily appreciate that many suitable inventive concepts are provided by the embodiments of the present invention that are applicable in a wide variety of specific contexts. It should be understood that the specific embodiments disclosed are merely illustrative of specific ways to make and use the invention, and do not delimit the scope of the invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The detection device comprises a detection platform and a first temperature sensor positioned on the detection platform, wherein after the temperature of the heat absorption part of the heat dissipation device is obtained, the temperature of the heat dissipation part of the heat dissipation device is detected by the first temperature sensor, and the temperature difference between the heat absorption part and the heat dissipation part of the heat dissipation device is determined, so that the heat dissipation efficiency of a device corresponding to the heat dissipation part in the heat dissipation device is determined. The detecting device according to another embodiment of the present invention further includes a second temperature sensor in addition to the detecting platform and the first temperature sensor, wherein the detecting platform is used to detect the temperature of the heat dissipating portion of the heat dissipating device by the first temperature sensor and the temperature of the heat absorbing portion of the heat dissipating device by the second temperature sensor, and the temperature difference between the heat absorbing portion and the heat dissipating portion of the heat dissipating device is determined, so as to determine the heat dissipating efficiency of the device corresponding to the heat dissipating portion of the heat dissipating device. In the detection device of the other embodiment of the invention, the heating module is added, so that the heating and the temperature sensing are integrated, and the efficiency test of the heat dissipation device is more convenient.

Referring to fig. 1 and 2, a detection device according to an embodiment of the invention mainly includes a housing 100, a first driving module 200, at least one first temperature sensor 300, a second driving module 400, a heating module 500, a second temperature sensor 600, and a control unit 700.

The housing 100 includes a platform 110, a sidewall 120, and a top plate 130, wherein the platform 110 is used for carrying a heat sink (e.g., the heat sink S shown in fig. 3) to be measured. The platform 110 is disposed opposite the top plate 130, and the sidewall 120 connects the platform 110 and the top plate 130. In one embodiment of the present invention, the platform 110 and the top plate 130 are respectively fixed to the sidewalls 120. One or more openings 111 may be formed in the platform 110 to accommodate various heat sinks. For example, if the heat dissipation device includes a fan or other protruding elements, the fan can be inserted through the opening 111 to keep the heat dissipation device flat. In addition, in the present embodiment, a plurality of grooves 131 are formed on the top plate 130 of the housing 100 for receiving the corresponding first temperature sensors 300.

As shown in fig. 1, the first driving module 200 is disposed in the top plate 130 of the case 100, and includes a link 210 and a driving motor 220. The link 210 is pivotally connected to the first temperature sensor 300, and the driving motor 200 is connected to the link 210. When the driving motor 200 drives the link 210 to rotate, the first temperature sensor 300 is driven to rotate relative to the top plate 130, and further approach or move away from the platform 110 of the housing 100. It should be noted that, in the embodiment shown in fig. 2, the lengths of the first temperature sensors 300 are different, so that when the first temperature sensors 300 rotate relative to the top plate 130 and move toward the platform 110, different distances are generated between the side walls 120 and the ends of each first temperature sensor 300, so that each first temperature sensor 300 can measure different portions of the heat sink.

Specifically, one end of the first temperature sensor 300 can be accommodated in the groove 131, and the other end of the first temperature sensor is close to or in contact with the heat sink to be measured when the first temperature sensor is close to the platform 110, so that the first temperature sensors 300 with different lengths can be in contact with different parts of the heat sink.

Referring to fig. 1 and 2, the second driving module 400 is also disposed on the top plate 130 of the housing 100 and is respectively connected to the housing 100 and the heating module 500 to drive the heating module 500 to move toward or away from the platen 110, so as to transfer heat energy to the heat sink disposed on the platen 110 when approaching the platen 110. The second driving module 400 may be, for example, a pneumatic cylinder or an electric push rod.

The heating module 500 is made of a metal material, such as copper, aluminum, iron, or an alloy thereof. The heating module 500 is also formed with a recess 510, and the second temperature sensor 600 is disposed in the recess 510. Specifically, the recess 510 is formed on the surface 501 of the heating module 500 facing the platen 110, and the second temperature sensor 600 received in the recess 510 is substantially aligned with the surface 501.

The first and

second temperature sensors

300 and 600 may be suitable elements for measuring temperature, such as a thermocouple temperature sensor (TC sensor) or a resistance temperature sensor (RTD).

The control unit 700 may be electrically connected to the first driving module 200 and the second driving module 400 through wires W, respectively, to transmit signals to start or stop the first and

second driving modules

200 and 400; in addition, the control unit 700 can determine the heat dissipation performance of the heat dissipation device according to the measurement results of the first temperature sensor 300 and the second temperature sensor 600.

Fig. 3 is a schematic diagram illustrating a heat dissipation device S according to an embodiment of the invention, which can be detected by the detection device shown in fig. 1 and 2 to obtain the heat dissipation efficiency of the heat dissipation device S.

As shown in fig. 3, the heat sink S mainly includes a heated area 10, a plurality of heat dissipation fins 30, and at least one heat pipe 20 penetrating the heat dissipation fins 30. The heated area 10 is typically made of a metallic material and is in contact with an electronic component, such as a Central Processing Unit (CPU) or a Graphics Processing Unit (GPU), to absorb heat generated therefrom. The heat sink fins 30 are thermally coupled to the heated region 10 to increase the heat dissipation area. The heat pipe 20 thermally couples the heated area 10 to conduct heat from the heated area 10 to the heat dissipating end of the heat pipe 20 for rapid heat removal.

The heat dissipation device S may also include other components for improving heat dissipation efficiency, such as a fan, which can be received in the opening 111. For clarity and neatness of the drawings, in the following description and drawings of detecting the heat sink S using the detecting device, only the heated area 10, the heat sink fins, and the heat pipe 20 will be drawn. It should be understood that the detection device of the present invention can be used for detecting various heat dissipation devices, and is not limited to the heat dissipation device S in the embodiment.

By using the detecting device shown in fig. 1, the temperature difference between the condensing end and the heat absorbing end of different heat pipes in the heat dissipating device shown in fig. 3 can be detected, so that the performance of the heat pipe can be determined, a dry burning (dry burning) phenomenon of the heat pipe can be generated when the temperature difference is too large, the performance test of the heat pipe can be determined not to pass, and the performance test of the heat pipe can be determined to pass when the temperature difference is low. Referring to fig. 4, when a user wants to use the detection device to detect the heat dissipation efficiency of the heat dissipation device S, the heat dissipation device S can be placed on the platform 110 of the housing 100. When the detecting device is not in use, the heating module 500 and the second temperature sensor 600 are located at the first position, and the first temperature sensor 300 is respectively accommodated in the groove 131 on the top plate 130, thereby facilitating the installation of the heat dissipating device S, protecting the first temperature sensor 300, and maintaining the integrity of the appearance of the detecting device.

Referring to fig. 5A and 5B, the control unit 700 can transmit a signal to the first driving module 200 to start the first driving module 200. The driving motor 220 in the first driving module 200 rotates the driving rod 210, so as to drive the first temperature sensor 300 to rotate out of the groove 131 and contact different portions of the heat sink S, such as different heat pipes 20. Since the lengths of the first temperature sensors 300 are different, the temperatures of the heat pipes 20 can be respectively touched and measured.

Meanwhile, the control unit 700 may transmit a signal to the second driving module 400 to start the second driving module 400 to operate. The second driving module 400 moves the driving heating module 500 and the second temperature sensor 600 from the first position to the second position toward the heat sink S and contacts the heated area 10 of the heat sink S. The heat module 500 provides heat energy to the heated area 10, and the second temperature sensor 600 measures the temperature of the heated area 10.

In other words, when the detecting device is in use, each of the first temperature sensors 300 contacts the heat pipe 20, and the second temperature sensor 600 and the heating module 500 contact the heat receiving region 10 of the heat sink S.

After the heating module 500 heats the heated area 10 for a predetermined time, the temperature measured by the first temperature sensor 300 is compared with the temperature measured by the second temperature sensor 600, so as to determine whether the heat sink S has a proper heat dissipation efficiency and/or find the heat pipe 20 with a poor heat dissipation efficiency.

For example, after the predetermined time period, the first temperature sensor 300 measures the temperature of one of the heat pipes 20 as T1, and the second temperature sensor 600 measures the temperature of the heated area 10 as T2. When T2-T1 is less than or equal to a predetermined temperature, it can be determined that the heat sink S has a suitable heat dissipation efficiency. When T2-T1 is higher than the predetermined temperature, it indicates that the heat pipe 20 has generated a dry out, and it can be determined that the heat dissipation efficiency is not good. The predetermined temperature may be, for example, 30 ℃ to 60 ℃ (e.g., 40 ℃).

It should be noted that, in the present embodiment, when the first temperature sensor 300 contacts the heat pipe 20, the second temperature sensor 600 will contact the heated area 10 simultaneously. In addition, when the heater module 500 contacts the heated region 10, the second driving module 400 may also cause the heater module 500 to apply a pre-pressure on the heated region 10 to simulate the situation where the heat sink S is mounted on an electronic component, thereby obtaining a more accurate measurement result.

In the present embodiment, the end of the first temperature sensor 300 can be designed to be a tapered structure (as shown in fig. 1) to avoid the situation that the heat pipe 20 is provided with fins and the like so as to avoid the situation of being unable to contact.

After the detection is completed, the control unit 700 may transmit signals to the first driving module 200 and the second driving module 400 to operate the first driving module 200 and the second driving module 400. The driving motor 220 of the first driving module 200 drives the connecting rod 210 to rotate, so as to drive the first temperature sensor 300 to rotate relative to the shell 100 and separate from the heat pipe 20, and finally return to the position accommodated in the groove 131. The second driving module 400 drives the heating module 500 and the second temperature sensor 600 to move from the second position back to the first position. That is, the detection device may return to the non-use state shown in fig. 4.

Since the detection device can simultaneously determine the heat dissipation efficiency of each heat pipe 20, the heat pipes 20 with poor heat dissipation efficiency can be replaced or maintained, and the detection efficiency can be increased.

Referring to fig. 6, in another embodiment of the present invention, the first driving module 200 includes a plurality of driving units 200A, and each driving unit 200A includes an electric push rod 230. The first temperature sensor 300 is connected to the electric push rod 230, so that the electric push rod 230 can drive the first temperature sensor 300 to move.

Referring to fig. 7, in another embodiment of the present invention, the first driving module 200 includes a plurality of driving units 200B, and each driving unit 200B includes a first electromagnetic driving element 240, a second electromagnetic driving element 250, and an elastic element 260. The first electromagnetic driving component 240 is fixed on the casing 100, the second electromagnetic driving component 250 is fixed on the first temperature sensor 300, and the elastic element 260 is connected with the first electromagnetic driving component 240 and the second electromagnetic driving component 250.

The first temperature sensor 300 can be driven to move relative to the housing 100 by the first electromagnetic driving component 240 and the second electromagnetic driving component 250. For example, the first electromagnetic driving component 240 may be an electromagnet, and the second electromagnetic driving component 250 may be a magnet. The first electromagnetic driving component 240 is energized by current to generate different magnetic poles, so that the second electromagnetic driving component 250 can approach or be away from the first electromagnetic driving component 240, thereby driving the first temperature sensor 300 to move.

In another example, the first electromagnetic drive component 240 may be a coil and the second electromagnetic drive component 250 may be a magnet. When current is applied to the coil, an electromagnetic effect is generated between the coil and the magnet, so that the second electromagnetic driving component 250 and the first temperature sensor 300 move relative to the first electromagnetic driving component 240.

In the present embodiment, the first electromagnetic driving assembly 240, the second electromagnetic driving assembly 250 and the elastic element 260 are all accommodated in the recess 131, and the shape of the second electromagnetic driving assembly 250 is substantially the same as the shape of the recess 131. Accordingly, the groove 131 may serve as a guide groove to guide the movement of the second electromagnetic driving assembly 250. The elastic element 260 can prevent the second electromagnetic driving element 250 and the first temperature sensor 300 from falling off when no current is applied to the first electromagnetic driving element 240 or the second electromagnetic driving element 250.

In some embodiments, the first electromagnetic drive component 240 may be a magnet and the second electromagnetic drive component 250 may be a coil. In some embodiments, the first electromagnetic drive component 240 may be a magnet and the second electromagnetic drive component 250 may be a coil.

Referring to fig. 8A and 8B, in another embodiment of the present invention, a guide groove 132 communicating with the groove 131 is formed on the housing 100, and the first driving module 200 includes a plurality of driving units 200C. Each driving unit 200C includes a stationary member 270, an elastic member 280, and a movable member 290. The elastic element 280 is disposed on the fixing member 270 and connected to the fixing member 270 and the first temperature sensor 300. The stationary member 270 is fixed to the movable member 290 and received in the recess 131. The movable member 290 is movable along the guide groove 132. Therefore, the user can adjust the positions of the fixed member 270 and the elastic element 280 by moving the movable member 290, and the first temperature sensor 300 can be abutted against the heat sink by the elastic force of the elastic element 280. In the present embodiment, the elastic element 280 may be a torsion spring, for example.

In some embodiments, the elastic element 280 may also directly connect the housing 100 and the first temperature sensor 300 to provide an elastic force to make the first temperature sensor 300 abut against the heat sink.

Since the driving

units

200A, 200B, and 200C of fig. 6, 7, 8A, and 8B may be located right above the corresponding heat pipes 20, the lengths of the first temperature sensors 300 connected to each of the driving

units

200A, 200B, and 200C may be the same, which is advantageous for component mounting.

In summary, the present invention provides a detection apparatus. By measuring the temperature of the heated area of the heat dissipation device and the temperature of each heat pipe, whether the heat dissipation device has proper heat dissipation efficiency or not can be effectively judged, and the heat pipes with poor heat dissipation efficiency can be found at the same time, so that the heat pipes with poor heat dissipation efficiency can be replaced or maintained, and the detection efficiency is improved.

Although the embodiments of the present invention and their advantages have been disclosed, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the invention. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification, but it is to be understood that any process, machine, manufacture, composition of matter, means, method and steps, presently existing or later to be developed, that will operate in accordance with the present application, and that all such modifications, machines, manufacture, compositions of matter, means, methods and steps, if any, can be made to the present application without departing from the scope of the present application. Accordingly, the scope of the present application includes the processes, machines, manufacture, compositions of matter, means, methods, and steps described above. In addition, each claim constitutes a separate embodiment, and the scope of protection of the present invention also includes combinations of the respective claims and embodiments.

While the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art to which the invention pertains will readily appreciate that numerous modifications and adaptations may be made without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims. Furthermore, each claim constitutes a separate embodiment, and combinations of various claims and embodiments are within the scope of the invention.

Claims

1. A detection device for detecting the heat dissipation efficiency of a heat dissipation device, wherein the heat dissipation device comprises a heated area and a plurality of heat pipes thermally coupled to the heated area, and the detection device comprises:

the shell comprises a platform for bearing the heat dissipation device;

a plurality of first temperature sensors connected to the top plate of the casing and movable relative to the platform, wherein when the detection device is in a use state, the plurality of first temperature sensors respectively contact the plurality of heat pipes to detect the temperatures thereof, and when the detection device is in a non-use state, the plurality of first temperature sensors move relative to the platform and are separated from the heat pipes;

a second temperature sensor, which is in contact with the heated area when the detection device is in the use state;

the detection device also comprises a first driving module for driving the plurality of first temperature sensors to move relative to the platform at the same time, wherein the first driving module comprises a connecting rod which is pivoted with the shell and the plurality of first temperature sensors; or the first driving module comprises a connecting rod and a driving motor, the connecting rod is pivoted with the shell and the plurality of first temperature sensors, and the driving motor is connected with the connecting rod; when the connecting rod is driven to rotate, the first temperature sensors are driven to rotate relative to the top plate of the shell so as to approach or be far away from the platform of the shell.

2. The detection apparatus of claim 1, wherein the detection apparatus further comprises a heating module that contacts the heated region and provides heat energy to the heated region when the detection apparatus is in the use state; the heating module is provided with a concave part, and the second temperature sensor is arranged in the concave part.

3. The detecting device for detecting the rotation of a motor rotor as claimed in claim 1, wherein the housing further includes at least one recess, and the plurality of first temperature sensors are received in the at least one recess when the detecting device is in the non-use state.

4. The detecting device for detecting the rotation of a motor rotor as claimed in claim 1, wherein the ends of the plurality of first temperature sensors have a tapered structure.

5. The detecting device of claim 2, wherein the detecting device further comprises a second driving module to drive the heating module to move relative to the platform.